package com.example.kaoshi;

import java.util.Scanner;

/**
 * Created by Quincy on 2018/10/8.
 */
public class ZhuangbeiSum {
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);
        int n , m, x, y;
        n = scanner.nextInt();
        m = scanner.nextInt();
        x = scanner.nextInt();
        y = scanner.nextInt();
    }
}
